Short range distance measuring circuit

Discussion in 'General Electronics Chat' started by 9R1NC3, Jan 20, 2010.

  1. 9R1NC3

    Thread Starter New Member

    Jan 15, 2010
    6
    0
    HI,

    I need to measure the distance from my bot to obstacle, using ultrasonic.

    Max. range is 20cm, and need to measure short range(upto ~2cm).

    I am stuck and need a circuit design.
    help me plss....
     
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